Abstract
Abstract [2]Paracyclo[2]paracyclo[2](1,1′)ferrocenophane derivatives having olefinic or acetylenic bonds and aromatic rings were synthesized by intramolecularly titanium-induced reductive coupling of carbonyl compounds. The transannular π-electronic interactions between two olefinic or acetylenic bonds and two benzene rings were examined on the basis of electronic spectra.
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